Mold for making brass castings.



No. 793,068. PATENTED JUNE 27, 1905. P. HAGGENJOS.

MOLD FOR MAKING BRASS GASTINGS.

- APPLICATION FILED MAR. 27, 1905.

E I 6 5 I I I HHHII I WITNESSES. I j l/VI/E/VTOR ATTORNEY NITED STATES'ratentec. June 27, 1905.

FRANK HAGGENJOS, OF ST. LOUIS, MISSOURI.

MOLD FOR MAKING BRASS OASTINGS.

SPECIFICATION forming part of Letters Patent No. 793,068, dated June 27,1905.

Application filed March 27, 1905. Serial No. 252,195.

To (all II/I/()IJI/ luau (10000777,:

Be it known that I, FRANK HAGGENJOS, a citizen of the United States,residing at St. Louis, in the State of Missouri, have invented certainnew and useful Improvements in Molds for Making Brass Castings; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

My invention relates to improvements in metal molds for making brasscastings, and more particularly such a class of castings as are known asjournal-bearings of all kinds for railroad and all kinds of cars forlight and heavy transportation.

The objects of my improvements are to broaden the state of the art bythe use of valuable experiments thatI have made in my effort to cheapenthe process and get a better result. In doing so I change the style ofthe cages and reduce the size of the hard-sand fillings in proportion tothe size of the hearing being made. I also find it necessary in the useof certain mixtures of metal to vary the proportion of metal andsand-surface on the casting to hold the evenness of the mixture andprevent segregation in cooling, and I design these features hereinembodied to be improvements on my previous patent, No. 783, 577,February 28,1905,in this same branch of the art.

I attain these objects by the mechanism illustrated in the accompanyingdrawings, in which- Figure 1 is a perspective view of the metal part ofthe'mold complete opened. Fig. 2 is a cross-sectional view of the moldcomplete with the hard-sand fillings inserted in their seatings and cuton the center line of the locking-lever pivots. Fig. 3 is a longitudinalsectional view of the mold complete with the hard-sand fillings insertedin their seating-s and cut on the center line of the trunnions at eachend. Fig. 4 is an inside face view of one of the cages or frames. Fig. 5is an inside face view of the other cage or frame. Fig. 6 is an insideface view of one of the hard-sand fillings. Fig. 7 is an inside faceview of the other hard-sand filling.

In all of the views like letters refer to like parts.

In this application it is intended to be shown that the body portion Aof the mold, as shown in Fig. 1, is identically the same as that in myprevious patent referred to above, and it is also supported and rotatedin hangers, so as to present either side of the mold up, making it areversible mold to be filled with the molten metal through the back orbearing side of the mold and hard-sand filling, as desired.

The new and improved part of what is shown in this application is thetwo cages or frames B and (J, hinged to the body portion A of the mold,and their hard-sand fillings D and E.

By my continued course of experiments in the casting of journahbearingsof these various kinds 1 find that in some kinds of mixtures of metalsthe matter of the segregation of the molten metal in cooling is a matterof very vital importance to be overcome in order to get castings evenand homogeneous throughout. The fact that the different kinds of metalcomposing certain mixtures of metal vary in specific gravity and fuse atdifferent degrees of heat makes it not only difiicult to get an evenmixture of metal in castings, but also a difiicult matter to prevent theheavy metal that melts at a low degree of heat .from sweating out ontothe surface of the mold and into the sand. I find that I am able toovercome these difficulties by reducing the area of thehard-sand-filling surface of the mold and confining it strictly to thebearingsurface and the middle back lettered portion of the box. This isa necessity to get good castings of these mixtures and proves also to bea saving in the use of sand and the labor of making and handling anddrying large hard-sand fillings, which is very apparent in a very largeoutput of castings by this process.

Referring to the drawings again, it is very apparent that the sizes ofthe hard-sand fillings, as shown in Figs. 8 and 9 of my previous patent.referred to above, are greatly reduced, as is shown in this applicationin Figs. 6 and 7 and in the openings F and G in the cages B and (J. Alsoit is apparent that the cages B and C of this application are less thanthe cages B and C in proportion to the size of the mold in the previouspatent mentioned, and at the same time they are larger in proportion tothe size of the mold than the hardsand fillings shown in Figs. 8 and 9of that patent. Hence it is apparent that I have reduced theproportionate size of the cages and have simplified the complicated formof the hard-sand fillings. When these cages are once properly fitted tothe outer surfaces of the center mold-section A and are hinged thereto,they are more reliable in forming a perfect joint than the hard-sandfillings of the patent, which must'vary on their large surfaces andcomplicated shapes; but these hard-sand fillings D and E of thisapplication are in plain simple form, with plain sloping sides androunded corners fitting closely against the plain sloping sides of theopenings F and G in the cages B and G and are held in by the turnbuttons0 and (Z at each end of the cages, and the cages also are firmly lockedto the center section A by the lever clamp or button 1, as is shown inFigs. 1 and 2. These hard-sand fillings, though smaller and more simplein form, serve the same purpose and accomplish the same result as thoseset forth in the previous patent referred to above. Yet while theconstruction of the cages is entirely different in shape and thefillings are different and cover less of the surface of thecastingcavity I think it necessary to present additional claims to coverwhat I believe to be new in this application.

I claim 1. In a mold for making brass castings the cages or framesseated in and hinged to the sides of the'center mold-section andprovided with hard-sand fillings held in beveled seatings withturn-buttons and a central gate opening into the casting-cavity, asshown and specified.

2. In a mold for making brass castings a central mold-section providedwith cages or frames seated in it and hinged and locked to its sides andhard-sand fillings inserted in seatings in said cages and held in placewith looking buttons and a central pouring gate through the filling intothe casting-cavity of the mold, as shown and specified.

3. In a mold for making brass castings the combination of the centralsection provided with seatings for frames or cages, which are hingedthereto and locked or buttoned by turnbuttons, the said frames or cagesbeing provided with seatings for hard-sand fillings, and turn-buttons tohold the said fillings in. and a central pouring-gate through the saidfilling into the mold-cavity shown and specified.

4:. In a mold for making brass castings, the combination of the framesor cages provided with hard-sand fillings seated in them and secured byt urn-buttons, the said fillings having gate-openings to the internalcavity of the mold, the said frames or cages seated in and held to acentral mold-cavity section by the hinge-lugs and the locking-butt( )nsas shown and described.

In testimony whereof I affix mysignature in presence of two witnesses.

FRANK HAGGENJOS. \Vitnesses:

A. SOHREIBER, BRUCE P. OWENS.

